🔧 ESPA ES4 16 4" Submersible Pump with Coverco Motor: complete borehole set
Ready-to-install set with 4" ESPA ES4 16 submersible hydraulics and a Coverco motor. Designed to pump clean water from boreholes for domestic water supply, irrigation, agriculture and industry. Available in a 400 V three-phase version, with power ratings from 3 to 7.5 hp.
✔ ES4 hydraulics
- ✔ Housing, suction, discharge and shaft: AISI 304 stainless steel
- ✔ Diffusers and impellers: floating, made of technopolymer
- ✔ Seals: NBR/EPDM
- ✔ Built-in check valve
- ✔ Coupling: NEMA MG1-18.388 standard
⚙️ Coverco Motor
- ✔ Coverco motor 4", oil-filled, rewindable
- ✔ Construction: AISI 304 stainless steel casing
- ✔ Insulation class F; voltage tolerance +6% / -10%
- ✔ Starts: up to 30 per hour, spaced apart
- ✔ Installation vertically or horizontally; compatible with a frequency converter above 30 Hz
- ✔ NEMA 4" coupling; single-phase models include the external capacitor in the kit
📊 Technical Specifications by Model
| Model | Motor | Voltage | hp | kW | Hydraulic section length (mm) | Connection |
|---|---|---|---|---|---|---|
| ES4 16/08 | Coverco 4" 2.2 kW | 3x400V | 3 | 2,2 | 676 | 2" |
| ES4 16/11 | Coverco 4" 3 kW | 3x400V | 4 | 3 | 880 | 2" |
| ES4 16/13 | Coverco 4" 4 kW | 3x400V | 5,5 | 4 | 1013 | 2" |
| ES4 16/15 | Coverco 4" 4 kW | 3x400V | 5,5 | 4 | 1149 | 2" |
| ES4 16/20 | Coverco 4" 5.5 kW | 3x400V | 7,5 | 5,5 | 1489 | 2" |
💧 Head (m) by Flow Rate (m³/h)
| Model | 0 | 8,4 | 12 | 15,6 | 19,2 | 24 |
|---|---|---|---|---|---|---|
| ES4 16/08 | 51 | 41 | 35 | 29 | 22 | 12 |
| ES4 16/11 | 70 | 57 | 49 | 41 | 31 | 18 |
| ES4 16/13 | 81 | 67 | 58 | 48 | 38 | 22 |
| ES4 16/15 | 97 | 79 | 69 | 58 | 46 | 27 |
| ES4 16/20 | 125 | 102 | 89 | 74 | 60 | 37 |
In the table, each column shows a flow rate in m³/h and the value is the head in meters.
📋 Operating Limits
- ✔ Maximum water temperature: 30 °C (motor limit)
- ✔ Maximum depth: 250 m (motor)
- ✔ Suspended sand: up to 100 g/m³
